All language subtitles for 91 - Lens Corrections

In addition to adding noise or sharpness
with the sharpening adjustment,

we can also remove noise
using the noise reduction adjustment.

We can clearly see
this image has quite a bit of noise.

It's also evident
that the image has been taken at night.

This is a good example of what can happen
when the image sensor's ISO.

Sensitivity is set to high
in low light conditions.

Using the noise reduction settings,

we can try to eliminate
as much noise as possible.

The first option we have
here is the luminance adjustment.

This adjustment focuses
on the granularity of the noise.

In other words,
how well the greens of the image

blend in with one another
without adjusting the luminance slider.

We can see that the Greens don't blend
well at all.

That's what's causing
a grainy look for this image.

Watch what happens when we move

the luminance slider
from the very left to the right

by toggling the preview switch on and off.

You can see that quite a bit of noise
has already been removed

with that one setting alone.

Keep in mind that sometimes
when you apply noise reduction,

you do tend to lose some sharpness
in the image.

For this reason, it's important to balance
this setting to preserve detail,

but also eliminate as much noise
as possible.

Generally speaking, a setting of 7280

does work quite well,
so I'll keep it at around 75.

So this will eliminate grain
while still maintaining detail in the hair

strands and eyes in those kinds of areas.

The detail slider over here,

the detail slider will determine
how much detail is preserved in the image.

Remember

that adding detail entails adding noise.

The right amount of noise is essential
and that's what gives us detail.

Too much noise and we have green.

In this case, we won't be able to add much
detail without bringing the noise back.

So I'm going to drag the detail
down to zero so you can see that

the noise reduction is even more dramatic
when we bring the detail slider down.

We don't need to add any contrast
between our shadows and highlights either.

So you can leave the contrast slider
all the way down.

This is what would happen
if we brought it all the way up.

You can see the difference.

It just becomes a little bit too patchy.

So I'm going to leave that at zero

and the next setting
we can adjust here is color

to see the effect of this adjustment.

Magnify the eye area by 4 to 1

and then just zero in on one of the eyes

here in the eye area
and even other parts of the image.

You can see we have that colored texture,
especially in the pupils of the eye.

There's quite a bit of that pixelated
colored noise there.

This is exactly what the color slider
targets.

We can remove this color

by sliding the slider to the right

so you can see the difference right away.

Now, you can also smoothing
the transition between pixels

by reducing the detail slider down,

so that further helps remove the color

from that pixelated green area.

We can further smoothing
the transition between pixels by

increasing the smoothness.

So that's

with zero smoothness that's worth 100.

Now once you've made these adjustments,
go back to the fit view

and you're going to toggle
your preview, switch on and off,

and you can see that there's
a very dramatic change in Lightroom

does an excellent job in removing

grain from an image.

We hope you enjoyed that lecture.

And in the next lecture
we're going to be working

with the Lens Corrections
panel will also be working with Image

NY 002 di jpg

So please go ahead and load
that image in the developed view.